Edid Upgrade; Edid Introduction - Eiki EIP-WSS3100 Service Manual

Chapter 6

EDID Upgrade

6-1 EDID Introduction

Extended Display Identification Data is a VESA standard data format that contains basic
information about a display device and its capabilities, including vendor information, maximum
image size, color characteristics, factory pre-set timings, frequency range limits, and character
strings for the monitor name and serial number.
The information is stored in the display and is used to communicate with the system through a
Display Data Channel (DDC), which sites between the display device and the PC graphics adapter.
The system uses this information for configuration purposes, so the monitor and system can work
together.
Note: If a display device has digital input ports, like DVI or HDMI, but without EDID in its
main board, the display device will show no image while the input source is digital
signal.
Confidential
6-1